Richard J. Howell has extensive experience in corporate governance and with public company compliance and financial reporting. During the past decade, he has served in several board of directors governance roles: Red Robin Gourmet Burgers Inc. (Sept. 2005-May 2018), serving on the Compensation Committee and Audit Committee (including chair of Audit); LKCM Funds (Independent Trustee; July 2005-present), serving as chair on the Audit and Compliance Committee; and NACD North Texas Chapter (2010-present), serving as vice-chair in 2017 and as chair of Board presently. He is an NACD Board Leadership Fellow and in 2015 was named to the NACD Directorship 100.

Previously, Howell had a 37-year career with Arthur Andersen LLP, serving in various partner leadership roles in the audit and financial reporting practice. He worked with clients in the oil and gas, manufacturing, retail, real estate, and healthcare industries.

Howell has a BBA and MBA from the University of Wisconsin. He is a member of the NACD, the AICPA, and Texas Society of CPAs and is a licensed CPA in Texas.

Peggy Vaughan is a board director for MoneyGram (Audit) and for the American Productivity and Quality Center (Audit and Exec.), a global leader in industry business process benchmarking. She is also on the advisory board for Integra, a private company for cybersecurity solutions. She serves as board member of the North Texas Chapter of the National Association of Corporate Directors and the Dallas Chapter of International Women's Forum, and she is a member of the Women's Initiative Policy Advisory Council for the President George Bush Institute.

As a PwC partner, Vaughan's experience includes leading large-scale strategic, operational improvement, restructuring, technology, and change management engagements. She led various global PriceWaterhouseCoopers business units and served on both the U.S. and global PwC Boards of Directors. With IBM's acquisition of PwC Consulting, she became IBM's global consulting services leader with oversight for all business consulting. Vaughan holds a BA in Mathematics from SMU and an MBA from University of Texas at Austin.

Mark King has over 30 years of senior management experience in design, development, manufacturing, and business development serving the advanced electronics industry, including 22 years with Texas Instruments Inc. and later Raytheon through acquisition. Prior to his current position, he was president and COO of Lucas-Benning Power Electronics Inc.

King is the recipient of many awards, including several outstanding technical achievement awards at Texas Instruments for his work in advanced technology for classified applications. He has participated in lobbying efforts in Washington, D.C., for technology policy and development and has served on many panels in the Defense community. His business experience includes an emphasis on strategic development, business process improvements, and business growth. He is a certified NACD Board Leadership Fellow.

Mark currently serves as chairman of the board for Micropac Industries Inc. and Saint Vincent de Paul Society-Thrift Stores; vice chairman of the board for Hope Clinic of Garland; and board director for the North Texas National Association of Corporate Directors and Garland Summer Musicals. He previously served as chairman of the board for Baylor Scott White Hospital-Garland; chairman of the board and board director for Garland Chamber of Commerce; board director for Workforce Solutions Greater Dallas, the BEST Foundation, and Lucas-Benning Power Electronics Inc.; and chairman for the Industrial Advisory Board of the IMAP Society and of the Dallas County Manufacturing Association.

King holds a bachelor's degree in Engineering and a master's degree in Business Administration. He and his wife, Patti, are from West Virginia. They moved to Texas in 1978 and have lived in various locations, including Washington, D.C., and Dayton, Ohio. They have two children, Mark Jr. and Mary Beth.

Billie Williamson is a seasoned board professional with over 10 years of service experience, beginning with the Ernst & Young Americas Board and continuing on seven NYSE boards. She has extensive skills in the areas of strategy, mergers and acquisitions, financial statements and reporting, capital structure, governance of public companies, international operations, enterprise risk and controls, and dealing with activists.

Williamson served as a senior assurance partner and the Americas inclusiveness officer of Ernst & Young until her retirement at the end of 2011. She began her career at Ernst & Young in 1974 and spent the first 19 years in the assurance practice, becoming a partner in 1984. She then left to become CFO of AMX Corp. in Dallas where she led the company's successful IPO and subsequently became senior vice president of Finance of Marriott International Inc. She rejoined Ernst & Young in 1998 in EY's Center for Strategic Transactions.

Williamson now serves on the boards of directors of Pentair plc, a $3 billion water focused industrial manufacturing company; XL Group Ltd., an $11 billion property and casualty insurer and reinsurer (sale of the company to complete in August 2018); and Pharos Capital BDC Inc., a 1940 Act business development company investing in healthcare companies. She formerly served on the boards of directors of CSRA Inc., a $5 billion government contractor providing innovative, next-generation IT solutions; Janus Capital Group, a multinational money management firm with $200 billion under management sold to Henderson Group in 2017; Annie's Inc., a natural and organic food company, leading the successful sale of the company to General Mills in October 2014; Exelis Inc., a Fortune 500 aerospace company that was sold to Harris Corporation in May 2015; and Energy Future Holdings Corporation, the largest Texas utility, which completed its bankruptcy proceedings in March 2018. She is the financial expert on all of her boards and serves on or chairs the Audit Committee on all of her boards. She also has served on the Compensation Committee, Nominating and Governance Committee, and the Executive Committee on her various boards.

Williamson graduated with the highest honors from Southern Methodist University (SMU) with a Bachelor of Business Administration with an emphasis in Accounting and is a licensed CPA in the State of Texas. She was recognized as one of SMU's 2016 Distinguished Alumni. She also serves on the board of directors and as treasurer of the North Texas Chapter of the National Association of Corporate Directors. Williamson carries the designation as an NACD Leadership Fellow and she has been honored as a member of NACD's Directorship 100 in 2016 and as an Outstanding Director by the Dallas Business Journal and the NACD North Texas Chapter.

Alan Bell has served 33 years in various capacities at Ernst & Young LLP from 1973 until his retirement in 2006, when he was director of Ernst & Young's Energy Practice in the southwest United States. Before joining Ernst & Young, he was a production engineer with Chevron Oil Company in the Gulf of Mexico. He was appointed to the Approach Resources Board in August 2010 and is chairman of the Audit Committee and a member of the Compensation Committee. Bell has been a director and chairman of the Audit Committee of Jones Energy Inc. since July 2013. During the past five years, he has also served as a director of Dune Energy Inc., an independent energy company based in Houston; Toreador Resources Corporation, an independent energy company based in Dallas; and Central Energy GP LLC, the general partner of Central Energy Partners LP, a public company engaged in the storage and transportation of oil and gas, refined petroleum products, and petrochemicals.

In 2009, Bell served as the chief restructuring officer of Energy Partners Ltd., a New Orleans-based exploration and development company that emerged from Chapter 11 in September 2009. He also serves on the board of directors of the North Texas Chapter of NACD and is a NACD Board Leadership Fellow.

Bell earned a degree in Petroleum Engineering from the Colorado School of Mines and an MBA from Tulane University. He is a current member of the American Institute of Certified Public Accountants and the Texas Society of Certified Public Accountants and is a licensed Certified Public Accountant in Texas. He is also a member of the Institute of Certified Management Accountants, Association of Certified Fraud Examiners, and the Society of Petroleum Engineers. Bell is also an Eagle Scout.

Margot Carter is a seasoned public company lead director, nominating and governance committee chair, and compensation and audit committee member and has served as a C-suite executive for several multibillion dollar global NYSE and Nasdaq technology, real estate, and construction companies, including RP (Nasdaq), EXP (NYSE), and IBP (NYSE). She also serves on private boards, including the Freeman Company, the world's largest brand experience business; and is president of Living Mountain Capital and cofounder of Cien, an artificial intelligence company for improving sales productivity. Carter serves on the executive committee of NACD North Texas and is active in her community.

Donald F. Robillard Jr. spent 34 years as an employee of Hunt Oil and Hunt Consolidated, serving as executive vice president, chief financial officer, and chief risk officer of Hunt Consolidated, as well as a director of both companies, until his retirement on January 31, 2017. He was also CEO and chairman of ES Xplore LLC, a direct hydrocarbon indicator technology company, from early 2016 until September 1, 2017, when the company was successfully turned over to a new CEO and a new chairman. He remains an advisor to the chairman of Hunt Consolidated.

Robillard's experience with Hunt began in 1983 as the manager of international accounting. He was transferred to Yemen Hunt Oil Company in 1984 where he held various management roles, ultimately becoming vice president of Finance. His experiences in Yemen included his participation in bringing the first oil from Yemen onto production, the development of 12 commercial oil fields, and the construction of several new major gas facilities.

Prior to joining Hunt, Robillard was affiliated with the international division of Cities Service Oil Company, where he held various supervisory and managerial accounting posts, including negotiating accounting and business projects with partners and host governments in the Far East, Middle East, Africa, and South America.

Robillard is an active member of Financial Executives International where he has served as a national and local chapter board member. In 2012, he received the Financial Executives International Distinguished Service Award. He was also recognized as one of the top corporate finance professionals in Dallas-Fort Worth as winner of Dallas CEO magazine's 2012 Financial Executives Awards, where he was honored as the Outstanding CFO in the Private Company category. In 2014, the Dallas Business Journal recognized Robillard with its CFO Lifetime Achievement Award. In both 2015 and 2016, Dallas CEO magazine recognized him as one of the 500 most influential business leaders in the city.

Robillard is a member of the American Institute of Certified Public Accountants; the Texas Society of Certified Public Accountants; the National Association of Corporate Directors, where he serves as director of the North Texas Chapter; and Financial Executives International, where he also serves as director of the Dallas Chapter. He is a former trustee and advisory board member of the Perot Museum of Nature and Science and has also served as president and as director of the Dallas Petroleum Club. He is a director of Helmerich & Payne Inc. and Cheniere Energy Inc.

Robillard is a Certified Public Accountant and earned a BBA from the University of Texas in Austin in 1975.

Jim Skinner is the retired vice chairman of Neiman Marcus Group (NMG), a $4 billion luxury fashion retailer. He has also served as chief operating officer and chief financial officer for NMG. During his 15 years with NMG, he has had responsibilities for numerous areas, including finance, accounting, strategy, business development, distribution and logistics, real estate and construction, investor relations, legal, and information technology.

Skinner led the process for both the 2005 $4.8 billion public-to-private sale and the 2013 dual tract process that led to the private-to-private $6.3 billion sale of NMG. He has led numerous acquisition teams, including the NMG acquisition of Munich-based fashion ecommerce retailer myTheresa.

Prior to NMG, Skinner was with CompUSA ($6 billion in revenue), a pioneer in computer retailing, holding various positions, including executive vice president and chief financial officer. He joined CompUSA shortly before the initial public offering and left after the sale of the company in 2000. He began his career with EY, an international professional services firm, where he served for 16 years, including the last four years as a partner.

Skinner is on the board of directors of Fossil Group (NASDAQ: FOSL), Hudson Ltd. (NYSE: HUD), and Ares Commercial Real Estate (NYSE: ACRE). He has served as chairman of Audit, Compensation, and Finance Committees. He is also on the Advisory Board of RevTech, an incubator/accelerator focused on the retail technology.

Bill Buechele is an experienced board member and a senior financial professional and business advisor. He has served, advised, and led growth and transactional entities for over 35 years. He serves on the board of the North Texas Chapter of the National Association of Corporate Directors and previously served on the boards of directors of the National Alzheimer's Association, the Alzheimer's Association of North Central Texas, and Junior Achievement of the Chisholm Trail. His 25 years of board service includes serving as chair of audit and finance committees, compensation and executive committee membership, and officer roles as board chair and treasurer. Buechele is experienced in developing consensus among board, management, and third-party factions on strategic and sensitive issues that transform organizations.

As managing partner of the Deloitte Fort Worth, Texas, practice, Buechele had financial, human resources, and business development responsibilities, while serving multinational and domestic public and private clients in a variety of industries including energy, manufacturing, and technology. He advised senior management and audit committees on governance, financial reporting, equity and debt financings, and transactional due diligence.

Mr. Buechele also led the North Texas Deloitte Growth Enterprise Services group overseeing assurance, tax, and advisory services tailored to address the regulatory and strategic needs of growing enterprises, including private equity and family office owned and venture capital backed enterprises. He has developed and scaled creative and flexible solutions for challenges and opportunities for entities with a wide range of resources and sophistication.

Mr. Buechele has a Bachelor of Arts and a Master of Business Administration from Indiana University and is a licensed Certified Public Accountant in Texas. His other roles include serving on the investment screening committee of the Cowtown Angels, as a member of the Angel Capital Association, as a mentor for early-stage entrepreneurs in commercializing innovative technology, and as director of business development for Capital CFO Partners.

William Cron is the J. Vaughn and Evelynne H. Wilson Professor in Business and deputy for Faculty Research at the M. J. Neeley School of Business at TCU. He is an NACD Board Leadership Fellow and has served on the boards of directors for the Park Plaza Medical, Advanced Medical Supply, Southwest Medical Supply, the Midmark Corporation, 24VirtualMD, the American Marketing Association National Board, Health Industry Trade Association, and the Health Industry Trade Association Foundation. Since 1980, he has authored the HIDA Financial Report for health care distributors. He has consulted with companies including Johnson and Johnson Medical, Bristol-Myers Squibb, Physician Sales & Service Inc., VHA Inc., and the Baylor Health System.

Cron's research has been published in more than 80 marketing and sales management articles in top academic journals, and he has been recognized as one of the top 10 sales and sales management researchers in the United States. Additionally, his research and industry studies have appeared in professional journals for the American Veterinary Medicine Association, the Trade Show Bureau, the American HomeCare Association, the Association for Medical Sales, and the Health Industry Distributors Association.

Cron has been invited to speak on various sales topics at universities throughout the world, including Erasmus University in Rotterdam, Ruhr University in Germany, the University of Bern in Switzerland, Warrick University in Great Britain, Bacconni University in Italy, Wuhan University in China, Dijon University in France, and Technologico de Monterey in Mexico. He has also coauthored seven editions of one of the leading sales management texts in the United States and Canada, Sales Management: Concepts and Cases (John Wiley & Sons Inc.). He received the 2012 Lifetime Achievement Award from the Sales & Sales Management Special Interest Group of the AMA.

Cron earned his DBA and master's degrees from Indiana University and his BS from Xavier University.

Ray Hemmig has more than 40 years of executive and board experience in the retail and restaurant industries, including J. C. Penney; Hickory Farms of Ohio; Grandy's; Ace Cash Express; Buffet Partners LP (Furr's Fresh Buffet). He has served as COO, EVP, CEO, and independent director, as well as an executive chairman and non-executive chairman of the board (COB). He also founded and manages Retail and Restaurant Growth Capital (RRGC) and Hemmig Investments LTD (HIL) based in Dallas, Texas.

Mr. Hemmig has served in active investor and/or management roles in multiple, successful M&A transactions: Grandy's to Saga Corp. in 1983; On the Border's to Brinker in 1996; the sale of Ace Cash Express in 2006; the sale of Restoration Hardware in 2008; and multiple private company transactions at RRGC. His current/recent ventures include Snappy Salads based in Dallas, Texas, and The PGA Tour Super Stores and Taco Mac, both based in Atlanta, Georgia.

Mr. Hemmig has extensive corporate board experience, having served on multiple public company boards: Communications World (COMW); Party City (PCTY); On the Border (OTBC); Ace Cash Express (AACE); Restoration Hardware (RSTO/RH); Full House Resorts (FLL); and MobileSmith (MOST); as well as numerous other privately held company boards in the United States and abroad. Hemmig is also an active member and board member of the North Texas Chapter of the National Association of Corporate Directors, where he holds the highest Leadership Fellow Director status. He was also a director of The University of Texas at Dallas's and the Institute for Excellence in Corporate Governance, and currently, he is chair of the Jindal School of Management Advisory Board at The University of Texas at Dallas and on the Development Board for the university. He is also a frequent speaker on the subjects of corporate governance and the retail/restaurant trade industries.

Mr. Hemmig has also served on various industry and nonprofit affiliations such as Dallas Restaurant Association (past president); Texas and National Restaurant Associations (director); International Franchise Association; International Shopping Center Association; FiSCA (formerly NaCCA); and board member and past president (2x) North Texas Food Bank, among many other educational, community service, and charitable entities.

Craig Jimenez is president, director, and co-founder of EcoCentri, a clean-tech company holding exclusive rights to technology for reduction of particulates, metals, SOx, NOx, and CO2 emissions from coal- and gas-fired power plants. He also advises early-stage companies in clean-tech, energy storage, and related fields through Risk Oversight LLC.

Prior to EcoCentri, Jimenez was president and served on the board of OGE Energy Resources, the $1.3 billion energy and environmental products marketing subsidiary of OGE Energy Corp. He chaired Enogex's (NYSE: ENBL) Commodity Guidance Committee and served on the public company's Corporate Risk Oversight Committee (NYSE: OGE).

Mr. Jimenez's early technical work included commercial software and naval acoustics followed by Saudi Aramco's massively parallel reservoir simulator project POWERS. He's held various energy and financial P&L positions including structured products, storage trading, and LNG trading, and he founded Mirant's weather-triggered options business-line for load-serving entities. He prototyped and marketed FEA's market-leading model for arbitrage pricing and risk management of energy storage.

Mr. Jimenez served as a member of the nominating committee (composed of non-board members) for the Professional Risk Managers International Association (PRMIA), and he continues to serve PRMIA as a subject matter expert in two areas: energy and risk appetite and executive compensation.

Mr. Jimenez holds a sustained interest in energy/environmental markets and is a student of robust cryptographic implementations for resilient finance, energy, and transportation.

Maribess Miller is an experienced board member currently serving on three corporate boards: Zix Corporation, where she chairs the Audit Committee and is a member of the Compensation Committee; Midmark Corporation, a closely held medical supply company, where she is chair of the Audit Committee; and Triumph Bancorp (NASDAQ; TBK), where she chairs the Nominating and Governance Committee and is a member of the Audit Committee.

From 1984 to 2009, Miller was an audit partner with PricewaterhouseCoopers. Her clients included public and private companies in the healthcare, energy, technology, and consumer and industrial products industries. She joined PwC in 1975 and gained broad and diverse experience working as an auditor and business advisor. She was involved in governance of PwC and held numerous leadership positions, including managing partner of the North Texas region and U.S. leader of the healthcare audit practice. Her experience includes corporate governance and compliance with SEC rules and regulations.

Miller is a high-energy executive who believes in corporate responsibility and service to her community. In 2009, she was appointed to the Texas State Board of Public Accountancy, where she has gained experience on the Executive and Rules Committees and as chair of the Behavioral Enforcement Committee. She is currently on the board of the North Texas Chapter of the National Association of Corporate Directors and is a public trustee on the Dallas Medical Resource board.

Miller earned her BBA in Accounting from Texas Christian University in 1975 and graduated cum laude from the Neeley School of Business. She is currently on Neeley's International Board of Visitors where she works to set strategic direction for the business school. She resides in Dallas, Texas, and her other activities include work with Golden Seeds, an early-stage venture capital group based in New York, and service as an active member of the advisory board of the Texas Women Ventures Fund.